Classification Systems | Approach to the Patient | Treatment | Neurobiology | Alcohol-Related Disorders | Caffeine-Related Disorders | Cannabis-Related Disorders | Hallucinogen-Related Disorders | Inhalant-Related Disorders | Opioid-Related Disorders | Sedative-, Hypnotic-, or Anxiolytic-Related Disorders | Stimulant-Related Disorders | Tobacco-Related Disorders | Other (or Unknown) Substance-Related Disorders | Non-Substance-Related Disorders | References
Humans have been using botanical and chemical
substances to achieve altered states of consciousness for thousands
of years. A majority of people in the world use at least one psychoactive
substance, and many of these substances are ubiquitous within a
culture (e.g., caffeine, tobacco). Most individuals engage in use
without encountering difficulties, although a small percentage of
them develop substance-related disorders that can lead to considerable
burden and cost on many levels. For example, tobacco and alcohol
use disorders together significantly contribute to the development
of serious diseases (e.g., lung cancer, liver cancer) worldwide.
In the United States, tobacco use in particular is the number one
preventable cause of death.